Study selection and analysis: Randomised controlled trials (RCTs) of non-pharmacological interventions which aimed to prevent or reduce antipsychotic-associated
weight gain were included. All data were extracted by one author and verified by a second author. Data were pooled using random
effects models in Review Manager 5.0.24 software. Study heterogeneity was measured using the I2 statistic. Sensitivity analyses were carried out to assess the effects of potential moderators.